Foot switch



FIG. 1 is a front left side isometric view of a foot switch in accordance with the new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines are included for the purpose of illustrating portions of the foot switch and form no part of the claimed design. 

CLAIM The ornamental design for a foot switch, as shown and described. 